NWS Key West

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Last Map Update: Sun, Mar 1, 2026 at 7:28:40 am EST

Watches, Warnings & Advisories

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National Weather Service Tampa Bay Area, FL

National Weather Service Miami - South Florida

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Dense Fog Advisory

Marine Fog Adv.

Fog Lingering

Island Chain

Marine Winds

Wave Heights

A Marine Dense Fog Advisory is in effect for the SE Gulf and Bay and Gulfside waters. Visibilities will be below 1 nautical mile at times. Mariners should avoid operating in fog; use caution if you must operate. Make sure all running lights are on. Use your radar, GPS, and compass. Assign a mate to take watch away from engine noise to hear fog signals.

Fog will linger near the Lower and Middle Keys during the morning hours. In the graphic is a screenshot of a traffic camera from the Florida Department of Transportation. The screenshot is blurry where a road should be due to the fog.

TODAY...Partly cloudy with a slight chance of showers and thunderstorms. Patchy fog early. Highs near 80F. Light and variable winds. Chance of rain 10 percent.

TODAY...A MARINE DENSE FOG ADVISORY IS IN EFFECT FOR THE DEEP GULF AND BAY AND GULF SIDE WATERS. Generally north to northeast, variable at times, light breezes. Seas across bay and gulfside zones 1 foot or less, seas across Hawk Channel, the Florida Straits, and deep Gulf waters around 1 foot. Bay and nearshore waters smooth. Isolated showers and thunderstorms.

TODAY...A MARINE DENSE FOG ADVISORY IS IN EFFECT FOR THE DEEP GULF AND BAY AND GULF SIDE WATERS. Generally north to northeast, variable at times, light breezes. Seas across bay and gulfside zones 1 foot or less, seas across Hawk Channel, the Florida Straits, and deep Gulf waters around 1 foot. Bay and nearshore waters smooth. Isolated showers and thunderstorms.

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Winter Returns Across the Northern Tier; Record Warmth for the Southwest

NWS Key West